Do small fans generally use brushless motors or brushed motors?

　　The fans we use every day affect the air activity through the rotation of the fan blades by the motor. Generally speaking, the fan motors are mostly brushless motors. Because the fans need to run for a long time, brushless motors can meet this requirement. But brushed DC motors cannot meet this demand.

　　But for some small fans, micro brushed DC motors can also meet application requirements. For example, hand-held small fan motors and usb fan motors can all use brushed micro DC motors. The speed adjustment of the micro brushed DC motor is simple, not as complicated as the brushless motor. In addition, the cost of the brushed micro DC motor is low, and the price of the small hand-held fan is not high, so the brushed DC motor is used in the hand-held small fan.

　　Of course, it is better to use brushless motors, but due to cost considerations, few people use brushless motors for small fans, and like USB small fan products, the difference between brushless and brushless motors will not be too great. In terms of a difference in service life, the wear life of brushed motors with carbon brushes is lower than that of brushless motors, but for micro and small products, these can be neglected.

　　It is recommended to use 020 micro DC motor, 140 micro DC motor or 370 micro motor for hand-held small fan/usb fan with brush motor. These are all round motors with relatively small size and light weight. They are very suitable for small fan products. This type of micro motor is mostly used in the market, but the volume of the 370 micro motor will be slightly larger, and the USB fan can be used. Therefore, when we choose a small fan motor, we don't have to be a brushless motor. A brushed DC motor can also meet various needs.

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